PEI on alert for invasive browntail moth caterpillar

February 28, 2019

The browntail moth caterpillar.

Feb. 28, 2019 – Prince Edward Island is on the alert for an invasive caterpillar that poses a threat to not only oak trees but to humans as well. The browntail moth caterpillar feeds on oak trees and its hairs give off a toxin when touched.